noaa-ocean-10419 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - California Margin ODP1018 600KYr Multiproxy Data 2010-07-19 publication noaa-ocean-10419 NCEI DSI 1200_01 Lyle, M. originator Lyle, M. author Heusser, L.E. originator Heusser, L.E. author Ravelo, A.C. originator Ravelo, A.C. author Olivarez Lyle, A. originator Olivarez Lyle, A. author Andreasen, D.H. originator Andreasen, D.H. author Diffenbaugh, N. originator Diffenbaugh, N. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleocean (geochemistry) with a geographic location of Eastern Pacific Ocean. The time period coverage is from 613570 to 2680 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > paleocean > geochemistry theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher hydrology theme Ocean > Pacific Ocean > Eastern Pacific Ocean> ODP1018 > LATITUDE 36.989 > LONGITUDE -123.276 place otherRestrictions Cite as: Lyle, M.; Heusser, L.E.; Ravelo, A.C.; Olivarez Lyle, A.; Andreasen, D.H.; Diffenbaugh, N. (2010-07-19): NOAA/WDS Paleoclimatology - California Margin ODP1018 600KYr Multiproxy Data . [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/10419. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions None otherRestrictions Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. The Pleistocene water cycle and eastern boundary current processes along the California continental margin 2010 publication Lyle, M., L. Heusser, C. Ravelo, A. Olivarez Lyle, D. Andreassen, and N. Diffenbaugh author Paleoceanography publisher https://doi.org/10.1029/2009PA001836 HTTPS Web Browser Associated Reference published 2010 Lyle, M., L. Heusser, C. Ravelo, A. Olivarez Lyle, D. Andreassen, and N. Diffenbaugh, 2010: The Pleistocene water cycle and eastern boundary current processes along the California continental margin. Paleoceanography, 25, , 10.1029/2009PA001836 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 613570 cal yr BP to 2680 cal yr BP; -123.276 -123.276 36.989 36.989 Study Coordinates 36.989 -123.276 -611620 -730 STUDY NOTES: Multiproxy data from ODP Site 1018 off the central California coast. Data include stable isotopes, alkenone SST, carbon, biogenic silica, and terrestrial pollen data. Total organic carbon and carbonate data were measured from 0 to 114.6 mbsf (2.8 to 614 ka). Age model is from oxygen isotope stratigraphy using a spline age model developed using Analyseries software (see Lyle et al. 2010). Sediments were freeze-dried, a split was analyzed for total carbon, and a second split was acidified and analyzed for organic carbon. The difference between total carbon and organic carbon was assigned to be inorganic carbon in CaCO3. CaCO3 was estimated by multiplying the inorganic carbon by 8.33, the CaCO3/C weight ratio. Alkenone sea surface temperature data were measured from 0 to 31.9 mbsf (2.7 to 160 ka). Age model is from oxygen isotope stratigraphy using a spline age model developed using Analyseries software (see Lyle et al. 2010). Alkenones were extracted from sediments using methylene chloride-methanol, analyzed via gas chromatography, and reported as SST using the Muller et al (1998) calibration equation. Oxygen isotopes for Site 1018 are reported in Andreasen et al., [2000]. The >250-um-size fraction was sampled for benthic foraminiferal species Cibicidoides wuellerstorfi, Cibicidoides pachyderma, and Uvigerina spp. Most analyses were conducted using one or two C. wuellerstorfi or three or four Uvigerina spp. tests. However, the number of tests of C. wuellerstorfi analyzed ranged from shell fragments to four specimens. Occasional analyses were done using species C. pachyderma when C.wuellerstorfi were scarce. All values reported here are relative to VPDB. Pollen data were obtained using standard processing procedures. KOH and HF digestion and acetolysis were preceded and succeeded by sieving through 7-mm nylon screening [Heusser and Stock, 1984]. An exotic tracer (Lycopodium) was added prior to sieving to determine pollen concentration per gram of sediment. Taxonomic identification of pollen was based on comparison with modern pollen reference collections from western North America, and pollen counts were continued until at least 300 pollen grains were identified from each sample. Biogenic silica was measured by the method described in Anderson and Ravelo [2001]. Samples were freeze-dried, lightly ground, and sieved. Splits were extracted for biogenic Si by the Mortlock and Froelich [1989] extraction technique using Na2CO3 and analyzed via an automated spectrophotometric flow injection analysis system [Lachat QuickChem 8000]. ABSTRACT SUPPLIED BY ORIGINATOR: Coastal marine sediments contain mixtures of terrestrial and marine paleoclimate proxies that record how the coastal water cycle has behaved over long time frames. We explore a 600-kyr marine record from ODP Site 1018, located due west of Santa Cruz, California, to identify coastal wet and dry periods, and to associate them with oceanographic processes. Wet periods in central California, identified by increased tree pollen relative to pollen from grasslands and scrublands, are found on every major deglaciation in the last 600 kyr. Sea surface temperature (SST) data were collected for the last 2 deglaciation. Wet periods are associated with a rapid rise in SST off central California. SST gradients along the California margin and changes in biogenic deposition show that wet periods in central California are associated with a weakening of the California Current and weakened coastal upwelling. High carbonate production suggests that there was significant curl-of-windstress upwelling offshore. We propose that wet periods in Central California are associated with a meteorological connection to the tropical Pacific and weakened southward flow in the California Current that shunted temperate Pacific water northward into the Alaska gyre. We do not observe evidence for a south-shifted westerly storm track at the last glacial maximum but find that wet periods are diachronous along the California margin. The wettest period around the Santa Barbara Basin peaked at 16 ka, preceding the wet peak in central and northern California by 4 kyr. DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-ocean-10419 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/10419 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lyle2010/lyle2010.txt HTTPS Download /contributions_by_author/lyle2010/lyle2010.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lyle2010/lyle2010.xls HTTPS Download /contributions_by_author/lyle2010/lyle2010.xls Original Data and Full Metadata download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25